[8.0ß22-x32] [Unreproducable] Background button not working

[Flint]

I was working in TC as usual. I started to move one large file (~900 Mb) from local disk to USB stick, and when the progress dialog appeared I pressed the Background button (by pressing the TAB, Space keys). The reaction of TC was very strange: the operation did not go into background, it remained there, and the Pause button disappeared from the dialog. After that the remaining Cancel and Background buttons did not work at all. I cancelled the operation by clicking the [X] button in the dialog's titlebar, then repeated the experiment — results were the same. In a newly started instance of TC the Background button worked correctly, and after I tried several more experiments (with other files) in the first TC instance, the problem also disappeared into thin air. All my attempts to reproduce the problem again failed.

TC 8.0β22 x32, OS is WinXP SP3 x32.

[ghisler(Author)]

That's very odd - apparently the function to move the dialog to the background failed. Actually it closes the dialog and creates a new one in the background.